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net/sched: cls_flower: Add match on the ct_state reply flag

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Add match on the ct_state reply flag.

Example:
$ tc filter add dev ens1f0_0 ingress prio 1 chain 1 proto ip flower \
  ct_state +trk+est+rpl \
  action mirred egress redirect dev ens1f0_1
$ tc filter add dev ens1f0_1 ingress prio 1 chain 1 proto ip flower \
  ct_state +trk+est-rpl \
  action mirred egress redirect dev ens1f0_0

Signed-off-by: Paul Blakey <paulb@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Paul Blakey 2021-01-27 16:32:45 +02:00 committed by Jakub Kicinski
parent cf3c7c7b37
commit 8c85d18ce6
2 changed files with 5 additions and 2 deletions
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1
include/uapi/linux/pkt_cls.h
View file

@ -592,6 +592,7 @@ enum {
TCA_FLOWER_KEY_CT_FLAGS_RELATED = 1 << 2, /* Related to an established connection. */
TCA_FLOWER_KEY_CT_FLAGS_TRACKED = 1 << 3, /* Conntrack has occurred. */
TCA_FLOWER_KEY_CT_FLAGS_INVALID = 1 << 4, /* Conntrack is invalid. */
TCA_FLOWER_KEY_CT_FLAGS_REPLY = 1 << 5, /* Packet is in the reply direction. */
};
enum {

6
net/sched/cls_flower.c
View file

@ -291,9 +291,11 @@ static u16 fl_ct_info_to_flower_map[] = {
[IP_CT_RELATED] = TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
TCA_FLOWER_KEY_CT_FLAGS_RELATED,
[IP_CT_ESTABLISHED_REPLY] = TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
TCA_FLOWER_KEY_CT_FLAGS_ESTABLISHED,
TCA_FLOWER_KEY_CT_FLAGS_ESTABLISHED |
TCA_FLOWER_KEY_CT_FLAGS_REPLY,
[IP_CT_RELATED_REPLY] = TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
TCA_FLOWER_KEY_CT_FLAGS_RELATED,
TCA_FLOWER_KEY_CT_FLAGS_RELATED |
TCA_FLOWER_KEY_CT_FLAGS_REPLY,
[IP_CT_NEW] = TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
TCA_FLOWER_KEY_CT_FLAGS_NEW,
};